.app-course{
    .container{
        width: 9.0013rem;
        margin: 0 auto;
        height: 100%;
        display: flex;
        flex-direction: column;
        .runHead{
            display: flex;
            justify-content: center;
            height: 1.3719rem;
            border-bottom: .0156rem solid #ccc;
            font-size: .3125rem;
            .run{
                flex: 1;
                justify-content: center;
                display: flex;
                align-items: center;
            }
            .riding{
                flex: 1;
                justify-content: center;
                display: flex;
                align-items: center;
            }
            .course{
                flex: 1;
                justify-content: center;
                display: flex;
                align-items: center;
            }
            .active{
                position: relative;
                color: #4694ff;
                font-size: .5rem;
                &::after{
                    position: absolute;
                    content: '';
                    height: .0313rem;
                    width: 1.1563rem;
                    bottom: 0;
                    background-color: #aad9f7;
                }
            }
        }
        .main{
            flex: 1;
            display: flex;
            flex-direction: column;
            .top{
                display: flex;
                flex-direction: column;
                margin-top: .3125rem;

                .topic{
                    font-weight: 700;
                    font-size: .4125rem;
                    margin-bottom: .1563rem;

                }
                .newCourse{
                    // height: 5.0479rem;
                    // line-height: .4844rem;
                    border-radius: .3125rem;
                    color: rgba(16, 16, 16, 100);
                    font-size: .3281rem;
                    box-shadow: 0 0rem .125rem 0rem rgba(0, 0, 0, 0.4);
                    .pictureBox{
                        border-radius: .3125rem .3125rem 0 0;
                        height: 3.6094rem;
                        width: 100%;
                        overflow: hidden;
                        // background: url(../imgs/part1.png)no-repeat 0 -1.7188rem;
                        // background-size: 9.6094rem;
                    }
                    .details{
                        display: flex;
                        height: 1.4531rem;
                        flex-direction: column;
                        justify-content: space-evenly;
                        .det-top{
                            font-weight: 700;
                        }
                        .det-bottom{
                            color: #9A9A9A;
                            font-size: .2813rem;
                        }
                    }

                }

            }
            .topic{
                margin: .4844rem 0 .3281rem;
                font-weight: 700;
                font-size: .4125rem;
            }
            .bottom{
                flex: 1;
                .advance{
                    position: relative;
                    height: 3.375rem;
                    line-height: .4844rem;
                    border-radius: 0.3125rem;
                    color: rgb(32, 8, 245);
                    font-size: .3281rem;
                    box-shadow: 0 0 0.125rem 0 rgb(0 0 0 / 40%);
                    margin-bottom: .3281rem;
                    background: url(../imgs/part2.png)no-repeat;
                    background-size: cover;
                    .adv-top{
                        position: absolute;
                        left: .3906rem;
                        top: 40%;
                        font-size: .3906rem;
                    }
                    .adv-bottom{
                        position: absolute;
                        left: .3906rem;
                        top: 55%;
                        font-size: .2813rem;
                    }
                }
            }
        }

    }
}